Tape throw-out for edging-machines.



R. R. HUGHES, JR.

TAPE THROW-OUT FOR EDGING MACHINES.

APPLICATION FILED DEC. 14. 1915.

Patented Feb. 4,1919.

4 SHEETS-SHEE[ I.

Witness R R. HUGHES, JR.

TAPE THROW-OUT FOR EDGING MACHINES.

APPLICATION FILED DEC. 14, I915.

Patented Feb. 4, 1919.

4 SHEETS-SHEEI 2.

R. R. HUGHES, JR.

TAPE THROW-OUT FOR EDGING MACHINES.

APPLICATION FILED DEC. 14. :915.

Patented Feb. 4, 1919.

4 SHEETS-SHEEI 3.

avwamtox- WR W 2 attomwa i R. R. HUGHES, Jn.

TAPE THROW-OUT FOR EDGING MACHINES. APPLICATION FILED 05c. I4, 1915.

1,293,445, Patented Feb. 4, 1919. v

4 SHEETSSHEEY 4.

rnr riot ROBERT R. HUG-HES, JR., OF UTICA NEW' YORJ, A*SSIGNOB TOUNION SPECIAL MACHINE ('KDIVJLPA'NY, OF CHICAGO, ILLINOIS, A; CORPORATION OF ILLINOIS.

TAPE THROW-OUT FOR EDGING-MAGHINES.

Specification of Letters Patent.

Patented Feb. 4t, 1919.

Applicationfiled December 14, 1915i Serial No. 66,838.

To all whom it mayconce'rn:

Be it known that I, Bonner R HUGHES, J12, a citizen of the'Un'ited States, residing at Utic'a, in the county of Oneida, State of New York, have invented certain new and useful Improvements in Tape Throw-Out for Edging-llfachines, of which the following is a description, reference being had to" the accompanying drawing and to the figures of reference mar'lred thereon.

The invention relates to new and useful improvements in edging machines and more particularly to-an edging machine shown in my (Jo-pending application Serial No; 46,320 filed August 19th,- 1915, wherein edg'1ngf threads or cross threads are stitched and joined to a fabric by stitching mechanism and a tape guide operatesto guide a tape alternately above and below the cross threads of the edging. c

When forming an edging on agarmentit is desirable to have the tape project beyond the endsof the finished edge.

An object of the present invention is to provide a machine'of the above character ivithmeans whereby the tape guide may be positioned at the will of the operator, wholly at one side of the thread guldes forming the edgingfso that the tape will not be interlaced with the cross bars of the edging.

A further object of the invention islto provide means whereby said tape guide may be rendered operative to cause the tape to be interlaced with the cross bars or rendered inoperative to cause the tape to be placed wholly at one side of the cross bars without stoppingthe stitching mechanism.

These and other objects will in part be obvious and will in part be hereinafter more fully disclosed. v

In the drawings which show byway of illustration one embodiment of the invention:

Figure 1 is a front end view of a sewingmachine embodying my improvements:

Fig. 2 is a view partly in plan and partlyin section showing the'work support and the elements directly above the" same,together with the operating devices therefor;

Fig. 3 is a view partly in vertical section and partly in side elevation showing the connection for vibrating'the tape guide and the manually controlled means for releasing the'same, said tape guide'being connected to its operating mechanism;

Fig. 4 is a similar view showing the manually operated mechanism shifted for disconnecting the tape guide from its operating mechanism.

Fig. 5 is a perspective view showing the tape guide,- the supporting means therefor, the operating link for actuating the tape guide,said link being disconnected from the tape guide;

Fig. 6 is a perspective view of the lever and connecting link for disconnecting the tape guide from its operating mechanism;

Fig. 7 is a view partly in section and partly in side elevation showing the tape guide, the support therefor and the controlling member which shifts'the tape guide;

Fig. 8 is a view in side elevation of the tape guide and the supporting shank therefor, also showing the relation of the tape guide to one of the edging forming memhers and Fig. 9 is a plan View showing a fabric having an edging formed thereon and the resulting position of: the tape when said tape guideisrendered idle.

For carryingout the invention I have provided a machine having two vibrating needles and loopers" which cotiperate therewith.v Thefabric on which'the edging is to beformed is guided to the needles so that one of the needles when moved. laterally formsalternate stit'chesover the edge of the fabric. Cooperatingwith these needles is a vibrated thread guide carrying an edging thread which forms the cross bars of the edging. This guide is reciprocated' so as to lay the cross bars after the needle has reciprocated a predetermined number oftimes. The thread forming the cross bars is secured to the fabric by the needle which steps over the edge ofthe fabric above referred to and the otherneedle forms a chain of loops which engage the cross bars'at a point distant from the edge of the fabric. The tape guide leads the tape between the needles and this tape guide is raised and lowered so as to position the tape alternately above and below the successive cross bars.

In order that the tape may not be interlaced with the cross bars and placed wholly at one side of the plane of a series of cross bars, I have provided mechanism, under the control of the operator, which may be actuated without stopping the stitching mechanism, for disconnecting'the tape guide from its vibrating mechanism and also mechanism for shifting the tape guide to an idle position at one side of the plane of the fabric being stitched.

. Referring more in detail to the drawings, my improved machine consists of the supporting bed 1 carrying an overhanging arm, in which is mounted a needle gate 2 carrying a needle bar 3. The needle bar is vibrated in the usual'manner. Said needle bar carries two needles 4 and 5. Cooperating with each needle beneath the work support is a looper 6, see Fig. 3. These loopers are mounted upon a looper carrier of the usual construction and the said loopers are vibrated by a link 7. The needle gate is oscillated so as to vibrate the needles back and forth by a bracket 9 which is ri idly secured to the needle gate and this bracket is oscillated by a lever 10 through a connecting link 11. The lever 10 is actuated from a cam groove 12 in a drum 13 mounted on a stub shaft and this drum is rotated by a gear 14 which meshes with a gear on the main shaft.

An edging thread guide 15 cooperates with the needles. This thread guide is in the form of an arm having guide eyes 16 and 17 for the thread which forms the edging. This arm is rigidly attached to a rock lever 18 which is pivoted on the overhanging arm of the machine, and this rock lever is oscillated by a link 19 which in turn is pivoted to a lever 20 fulcrumed at 21 on a bracket 22 mounted onthe supporting bed. The lever 20 is vibrated by a roller stud running in a cam groove 23 formed in a drum 23 mounted on a countershaft which is actuated by the gear 24 from a gear 25 on the stub shaft carrying the drum 13.

The edging thread guide 15 is tapered as indicated at 15, Figs. 3 and 4 and this facilitates the passing of the thread guide above or below a tape guide as will be hereinafter described.

The operating parts of this thread guide 15 are so constructed and timed that the thread guide will lay a cross thread or bar after a predetermined number of stitches have been formed so that said cross bars will be connected to the edge of the fabric by the stitching threads of the left hand needle, as viewed in Fig. 2.

A scallop thread is carried by a scallop thread 'guide 26 which is mounted on an arm 27 pivoted to a lever'28 fulcrumed at 29 on the bracket 22. This lever is oscillated by a link 30 which is connected to a roller stud running in the cam groove 31 formed in the drum 32 which drum is can ried by the shaft operated by the gear wheel 24. The arm 27 carries a pin 33 which eX- tends through a sleeve 34 swiveled on the arm of the machine.

The above thread guides for forming the edging and laying a scallop thread are more fully shown and described in my co-pending application above referred to and form no part of the present invention except as they are included. in combination with other elements.

The tape T is directed to the stitching mechanism by a tape guide 35. This tape guide 35 is secured to a shank 36 which is inturn clamped to a short shaft 37 The shaft 37 is mounted in suitable bearings in a bracket 38. Bigidly secured to the shaft 37 is a controller cam 39, see Fig. 7.

An oscillating bar 40 is formed with a rounded nose 41 which cooperates with the controller cam 39. As clearly shown in Fig. 7 of the drawings the contacting surface of the controller cam is formed on a curve of less radius than the distance between said surface and the pivotal point 42 of the bar 40. If, therefore, the bar 40 is oscillated to the right, as shown by full lines in Fig. 7, .it will turn the controller cam 39, so as to lower the front end of the tape guide, and if said bar 40 is oscillated to the left, as indicated by dotted lines in said Fig. 7, it will raise the front end of the tape guide. This bar 40 is provided with a headed pin 43, see Fig. 5. A link 44 is formed with ahook shaped end 45 adapted toengage the shank of the headed pin 43. i This link 44 extends rearwardly and is pivoted to a plate 46 which in turn is rigidly secured to an adjustable disk 47. This disk 47 is formed with slots 48 and screws 49 passing through the slots secure the disk to the front end of the drum 23 and, therefore, the disk is turned by the gear wheel 24. As the gear wheel rotates the link 44 will be'moved endwise and after said link is connected to the headed pin 43, then the bar 40 will be oscillated and through the controller cam 39 will shift the tape guide so as to alternately raise and lower the delivery end thereof.

In Figs. 7 and 8 of the drawings, I have shown the relative positions of the tape guide to the edging thread guide 15. When the tape guide is depressed as shown in Fig. 7, then the edging guide 15 passesover the tape guide and thus the tape is laid underneath the cross bar formed at this reciprocation of the edging guide 15. When, however, the tape guide is raised, as shown in Fig. 8, the edging guide 15 passes underneath said tape guide and in this position of the parts the tape is directed over the cross bar being formed. The means for oscillating the bar 40 is so timed that the tape guide is raised after the formation of one cross bar and is lowered after the formation of the next successive cross bar, and so on.

The tape guide and the specific mechanism for operating the same, above referred to is shownand described in my co-pending application, Serial No. 46,320 and forms no part of the present inventionexcept in combination with the means for controlling the movements of the tape guide.

Freely mounted on the shaft 37 is a lever 50. Said lever at its outer end carries a flexible connection 51 which maybe connected in turn to a suitable treadle or knee shift so that the operator may at will oscillate the lever 50. The lever 50 at its inner end is connected to a-link 52 which is forked at its upper end to straddle the link 44. A connecting pin 54 joins these two links.

From the above it will be apparent that when the lever 50 is depressed at its outer end the link 44 will be raised, disconnecting its hook end 45 from the headed pin 43. At the lower end ofthe bar 40 is a pin 55. spring 56 is connected at one end to this pm and the other end of the spring is connected to a bracket 57, which inturn is mounted on thesupporting standard 58 to which the bar 40 is pivoted. When the headed pin is released from its connection with the link 44, the spring 56 at once throws the lower end of the bar to the position shown in full lines in Fig. 8 and in dotted lines in Fig. 7. This raises the front endof the tape guide and as the bar 40 is now disconnected from its operating. link the tape guide will be held in this idle position by said spring 56. As the machine continues to operate, cross bars will be formed which will be wholly beneath the tape guide. At any time the operator desires the lever 50 may be swung in the opposite direction and this will connect the link 44 to the headed pin. The lower face of the hook end 45 of the link is cut away so as to form inclined walls 59 and 60 which facilitates the connection of the link to the headed pin. 'VVhen the lever 50 is thrown so as to connect the link 44 to the headed pin 43, the connection cannot be completed until the link 44 is moved to a position so that the hook end is substantially over the headed pin and will register therewith when depressed by the lever. In other words my improved connecting and disconnecting means insures the shifting of the tape guide from its raised position to its lowered position when thrown into action by the machine itself, so that when said tape guide is rendered effective it will at once take up its proper timed movements with the other parts of the machine.

As above noted, the outer end of the lever 50 is depressed by a treadle or knee shift which is attached to the flexible connection 51. When said t-readle or knee shift is released by the operator a spring 61 operates to'raise the outer end of the lever and depress the inner end thereof and thus automatically connect the link 44 to the headed pin so that the tape guide is thrown into operation.

From the above description it will be apparent that I have provided manually controlled means which may be operated without stopping the stitching mechanism for rendering the movements of the tape guide idle or for connecting the tape guide to its operating mechanism. Furthermore when said tape guide is disconnected from its operating mechanism it is automatically positioned wholly at one side of the plane of the fabric so that the tape will not be interlaced with the cross bars as they are formed. The tapered nose of the cross bar thread laying guide is for the purpose of insuring that this guide will pass above or below the tape guide if the same is being thrown to inoperative or idle position at a time when the cross bar thread guide is moving forward. This prevents interference between the thread guide 15 and the tape guide.

In a machine of the type described, it is well understood that the edging may be formed and the cross bars connected by the stitching threads whether there is a fabric passing through the machine or not. In other words, the needle threads together with the loopers form enchained loops which stitch together the cross bars and the scallop thread. One of the purposes of the present invention is to form edging on a garment, as for example, the neck of a garment having an opening at the front thereof.

In Fig. 9 of the drawings I have shown at F a portion of a garment wherein the fin ished edges are indicated at F and F Attached to this garment is an edging having cross bars E and'scallop thread S. The cross bars are connected to the edge of the fabric by a needle thread 91- which also overedges the fabric. The scallop thread is stitched to the cross bar thread by a needle thread a. It is desirable that the tape should project beyond the ends of the fabric. This is accomplished in the following manner. The tape guide is thrown by the operator to idle position and the machine runs so as to form a section of edging with the tape interlaced therethrough. The edge of the fabric F is then inserted, the tape guide is connected to its operating mechanism and the edging formed and the tape interlaced therein as indicated at the lower part of Fig. 9. It will be apparent, therefore, that there is a section of the edging projecting beyond the edge of the fabric and also a section of tape indicated at T which pro jects beyond the edge of the fabric. The edging may be cut off leaving the projecting tape which does not have to be withdrawn from its interlacing through the edging, as heretofore. Assuming that the neck of the garment has been stitched and the final edge of the fabric, indicated at F is passing underneath the needles, then the tape guide is again thrown out and a strip of edging is formed with the end T wholly at one side of the cross bars. The edging can now be cut 0H close to the edge of the fabric leaving the projecting tape.

It is obvious that my improved mechanism may be used for other purposes where it is desired to form an edging having a tape interlaced with the cross bars or laid wholly at one side of the cross bars at the will of the operator. It is also obvious that minor changes in the details of construction and arrangement of parts may be made without departing from the spirit of the invention as set forth in the appended claims.

Having thus described my invention, what I claim as new and desire to secure by Let ters Patent, is

1. A sewing machine including in combination, a work support, stitch forming mechanism, means for forming an edging having spaced cross bars and directing said edging whereby the same is stitched and joined to a fabric by the stitching mechanism, a tape guide for directing a tape alternately above and below the cross bars, and means under the control of the operator for positioning said tape guide at one side of the plane of the fabric during the operation of the machine, whereby successive cross bars are formed entirely at one side of said tape.

2. A sewing machine including in combination, a work support, stitch forming mechanism, means for forming an edging having spaced cross bars and directing the same whereby the same is stitched and joined to the fabric by the stitching mechanism, a tape guide, means for vibrating said tape guide vertically whereby the tape is guided alternately above and below the cross bars, and means under the control of the operator for disconnecting the tape guide from its vibrating means during the operation of the machine.

3. A sewing machine including in combination, a work support, stitch forming mechanism, means for forming an edging having spaced cross bars and directing the same whereby the same is stitched and joined to the fabric by the stitching mechanism, a

tape guide, -means for vibrating said tape guide vertically whereby the tape is guided alternately above and below the cross bars, means under the control of the operator for disconnecting the tape guide from its vibrating means, and means for shifting the tape guide when disconnected from its operating means so that the tape is guided over successive cross bars.

i. A sewing machine including in combination, a work support, stitch. forming mechanism, means for forming an edging having spaced cross bars and directing the same whereby the same is stitched and joined to the fabric by the stitching mechanism, a tape guide, means for'vibrating the tape guide vertically whereby a tape is guided alternately above and below the cross bars, said means including a link, means under the control of the operator for shifting thedlink for disconnecting it from the tape gui e.

5. A sewing machine including in combination, a work support, stitch forming mechanism, means for forming an edging having spaced cross bars and directing the same whereby the same is stitched and joined to the fabric by the stitching mechanism, a tape guide, means for vibrating the tape guide vertically whereby a tape is guided alternately above and below the cross bars, said means including a link, means under the control of the operator for shifting the link for disconnecting it from the tape guide, a spring for shifting the tape guide when disconnected from the link so as to position the delivery end thereof above the cross bar forming guides.

6. A sewing machine including in combination, a work support, stitch forming mechanism, means for forming an edging having spaced cross bars and directing the same whereby the same is stitched and joined to the fabric by stitching mechanism,

a tape guide, means for vibrating the tape guide vertically for positioning the tape alternately above and below the cross bars, said vibrating means including a link having a hook end adapted to engage a headed pin movable with the tape guide, a lever under the control of the operator for shifting the link for connecting the same to said headed pin and for disconnecting the same from the headed pin.

7 VA sewing machine including in combination, a work support, stitch forming mechanism, means for forming an edging having spaced cross bars and directing the same whereby the same is stitched and joined to the fabric by stitching mechanism, a tape guide, means for vibrating the tape guide vertically for positioning the tape alternately above and below the cross bars, said vibrating means including a link having a hook end adapted to engage a headed crating link whereby said delivery end is popin movable with the tape guide, a lever sitioned above the edging forming guide. 10 under the control of the operator for shift- In testimony whereof, I affix my signature ing the link for connecting the same to said in the presence of two Witnesses.

headed pin and for disconnecting the SELII'IB ROBERT R. HUGHES, JR. from the headed pin, a, spring connected to Witnesses:

the tape guide for raising the delivery end J 0s. BERGER,

thereof when it is disconnected from its op- MARY HUGHES.

Copies of this patent may be obtained for five cents each, by addressing the Commissioner of Patents, Washington, D. G. 

